Carbon dioxide reduction by pincer rhodium η2-dihydrogen complexes: Hydrogen-binding modes and mechanistic studies by density functional theory calculations

Kuo Wei Huang*, Joseph H. Han, Charles B. Musgrave, Etsuko Fujita

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Density functional theory (DFT) calculations using the KMLYP method on a series of pincer PCP-rhodium dihydrogen complexes have been employed to model and examine the proposed mechanisms for the pincer PCP-rhodium complexes mediated hydrogenation of carbon dioxide (CO2). The relative energies of dihydrogen rotamers and dihydride isomers were evaluated together with T1 values to determine the molecular structures of these complexes. We have investigated possible pathways for the CO2 reduction processes involving the formation of rhodium dihydride species. Although the dihydrogen complexes are more stable than the corresponding dihydride isomers, the reduction of CO2 has to proceed through the dihydride structures.

Original languageEnglish (US)
Pages (from-to)508-513
Number of pages6
JournalOrganometallics
Volume26
Issue number3
DOIs
StatePublished - Jan 29 2007
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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